--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/egl/sfopenvg/riContext.h	Wed May 12 11:20:41 2010 +0100
@@ -0,0 +1,277 @@
+#ifndef __RICONTEXT_H
+#define __RICONTEXT_H
+
+/*------------------------------------------------------------------------
+ *
+ * OpenVG 1.1 Reference Implementation
+ * -----------------------------------
+ *
+ * Copyright (c) 2007 The Khronos Group Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and /or associated documentation files
+ * (the "Materials "), to deal in the Materials without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Materials,
+ * and to permit persons to whom the Materials are furnished to do so,
+ * subject to the following conditions: 
+ *
+ * The above copyright notice and this permission notice shall be included 
+ * in all copies or substantial portions of the Materials. 
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
+ * THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ *
+ *//**
+ * \file
+ * \brief	VGContext class. Used for storing OpenVG state.
+ * \note	
+ *//*-------------------------------------------------------------------*/
+
+#ifndef OPENVG_H
+#include "openvg.h"
+#endif
+
+#ifndef __RIDEFS_H
+#include "riDefs.h"
+#endif
+
+#ifndef __RIMATH_H
+#include "riMath.h"
+#endif
+
+#ifndef __RIIMAGE_H
+#include "riImage.h"
+#endif
+
+#ifndef __RIPATH_H
+#include "riPath.h"
+#endif
+
+#ifndef __RIFONT_H
+#include "riFont.h"
+#endif
+
+#ifndef __RIARRAY_H
+#include "riArray.h"
+#endif
+
+//==============================================================================================
+
+namespace OpenVGRI
+{
+
+class VGContext;
+
+/*-------------------------------------------------------------------*//*!
+* \brief	A list of resources (Images, Paths, or Paints) shared by a
+*			set of contexts.
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+template <class Resource> class ResourceManager
+{
+public:
+	ResourceManager() :
+		m_referenceCount(0),
+		m_resources()
+	{
+	}
+
+	~ResourceManager()
+	{
+		RI_ASSERT(m_referenceCount == 0);
+		RI_ASSERT(m_resources.size() == 0);
+	}
+
+	void			addReference()
+	{
+		m_referenceCount++;
+	}
+
+	int				removeReference()
+	{
+		m_referenceCount--;
+		RI_ASSERT(m_referenceCount >= 0);
+		return m_referenceCount;
+	}
+
+	void			addResource(Resource* resource, VGContext* context)
+	{
+		Entry r;
+		r.resource = resource;
+		r.context = context;
+		m_resources.push_back(r);	//throws bad_alloc
+		resource->addReference();
+	}
+
+	void			removeResource(Resource* resource)
+	{
+		if(!resource->removeReference())
+			RI_DELETE(resource);
+
+		int i=0;
+		bool found = false;
+		for(;i<m_resources.size();i++)
+		{
+			if(m_resources[i].resource == resource)
+			{
+				found = true;
+				break;
+			}
+		}
+		RI_ASSERT(found);
+
+		for(;i<m_resources.size()-1;i++)
+		{
+			m_resources[i] = m_resources[i+1];
+		}
+		m_resources.resize(m_resources.size()-1);
+	}
+
+	bool			isValid(Resource* resource)
+	{
+		for(int i=0;i<m_resources.size();i++)
+		{
+			if(m_resources[i].resource == resource)
+				return true;
+		}
+		return false;
+	}
+
+	Resource*		getFirstResource(VGContext* context)
+	{
+		for(int i=0;i<m_resources.size();i++)
+		{
+			if(m_resources[i].context == context)
+				return m_resources[i].resource;
+		}
+		return NULL;
+	}
+
+private:
+	ResourceManager(const ResourceManager&);
+	ResourceManager operator=(const ResourceManager&);
+
+	struct Entry
+	{
+		Resource*	resource;
+		VGContext*	context;
+	};
+
+	int				m_referenceCount;
+	Array<Entry>	m_resources;
+};
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+class VGContext
+{
+public:
+	VGContext(VGContext* shareContext);	//throws bad_alloc
+	~VGContext();
+
+    void            setDefaultDrawable(Drawable* drawable); //called from EGL
+    Drawable*       getCurrentDrawable()        { return m_eglDrawable; }
+
+	bool			isValidImage(VGImage image);
+	bool			isValidPath(VGPath path);
+	bool			isValidPaint(VGPaint paint);
+	bool			isValidFont(VGFont font);
+	bool			isValidMaskLayer(VGMaskLayer layer);
+
+	void			releasePaint(VGbitfield paintModes);
+
+	void			setError(VGErrorCode error)		{ if(m_error == VG_NO_ERROR) m_error = error; }
+
+	// Mode settings
+	VGMatrixMode					m_matrixMode;
+	VGFillRule						m_fillRule;
+	VGImageQuality					m_imageQuality;
+	VGRenderingQuality				m_renderingQuality;
+	VGBlendMode						m_blendMode;
+	VGImageMode						m_imageMode;
+	
+	// Scissor rectangles
+	Array<Rectangle>				m_scissor;
+
+	// Stroke parameters
+	RIfloat							m_strokeLineWidth;
+	RIfloat							m_inputStrokeLineWidth;
+	VGCapStyle						m_strokeCapStyle;
+	VGJoinStyle						m_strokeJoinStyle;
+	RIfloat							m_strokeMiterLimit;
+	RIfloat							m_inputStrokeMiterLimit;
+	Array<RIfloat>					m_strokeDashPattern;
+	Array<RIfloat>					m_inputStrokeDashPattern;
+	RIfloat							m_strokeDashPhase;
+	RIfloat							m_inputStrokeDashPhase;
+	VGboolean						m_strokeDashPhaseReset;
+
+	// Edge fill color for vgConvolve and pattern paint
+	Color							m_tileFillColor;
+	Color							m_inputTileFillColor;
+
+	// Color for vgClear
+	Color							m_clearColor;
+	Color							m_inputClearColor;
+
+    Vector2                         m_glyphOrigin;
+    Vector2                         m_inputGlyphOrigin;
+
+	VGboolean						m_masking;
+	VGboolean						m_scissoring;
+
+	VGPixelLayout					m_pixelLayout;
+
+	VGboolean						m_filterFormatLinear;
+	VGboolean						m_filterFormatPremultiplied;
+	VGbitfield						m_filterChannelMask;
+
+	// Matrices
+	Matrix3x3						m_pathUserToSurface;
+	Matrix3x3						m_imageUserToSurface;
+	Matrix3x3						m_glyphUserToSurface;
+	Matrix3x3						m_fillPaintToUser;
+	Matrix3x3						m_strokePaintToUser;
+
+	VGPaint							m_fillPaint;
+	VGPaint							m_strokePaint;
+
+    VGboolean                       m_colorTransform;
+    RIfloat                         m_colorTransformValues[8];
+    RIfloat                         m_inputColorTransformValues[8];
+
+	VGErrorCode						m_error;
+
+	ResourceManager<Image>*			m_imageManager;
+	ResourceManager<Path>*			m_pathManager;
+	ResourceManager<Paint>*			m_paintManager;
+	ResourceManager<Font>*			m_fontManager;
+	ResourceManager<Surface>*		m_maskLayerManager;
+private:
+	Drawable*                       m_eglDrawable;
+
+	VGContext(const VGContext&);			//!< Not allowed.
+	void operator=(const VGContext&);		//!< Not allowed.
+};
+
+//==============================================================================================
+
+}	//namespace OpenVGRI
+
+//==============================================================================================
+
+#endif /* __RICONTEXT_H */